JP3194227U - Weld defect detection structure of T-type contact part - Google Patents
Weld defect detection structure of T-type contact part Download PDFInfo
- Publication number
- JP3194227U JP3194227U JP2014004270U JP2014004270U JP3194227U JP 3194227 U JP3194227 U JP 3194227U JP 2014004270 U JP2014004270 U JP 2014004270U JP 2014004270 U JP2014004270 U JP 2014004270U JP 3194227 U JP3194227 U JP 3194227U
- Authority
- JP
- Japan
- Prior art keywords
- iron plate
- compressed air
- piece
- air discharge
- contact portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000007547 defect Effects 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 title claims abstract description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 98
- 229910052742 iron Inorganic materials 0.000 claims abstract description 49
- 238000009423 ventilation Methods 0.000 claims abstract description 5
- 238000003466 welding Methods 0.000 claims description 19
- 238000007689 inspection Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000005192 partition Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000005187 foaming Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 239000001307 helium Substances 0.000 description 3
- 229910052734 helium Inorganic materials 0.000 description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 240000004050 Pentaglottis sempervirens Species 0.000 description 2
- 235000004522 Pentaglottis sempervirens Nutrition 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910017435 S2 In Inorganic materials 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
【課題】溶接欠陥の有無の一括検出を迅速適確に可能にした極めて安価で堅牢な構造で、しかも操作が簡易なＴ型当接部の溶接欠陥検出構造を提供する。【解決手段】第一鉄板Ｓ１の平面に第二鉄板Ｓ２の端面を当接してＴ型当接部にし、第一鉄板の平面と第二鉄板の端面とが成す両隅部３０１と両端部３０２を肉盛り溶接する構造において、この隅部３０１の溶接部Ｓｃ１の全長の一方側に圧空供給ピース１００を、他方側に圧空放出ピース２００を介在溶接し、圧空供給ピースは中央部に加圧空気供給管１１０を連通接続する貫通タップ１０１を形成し、圧空放出ピースは中央部に圧力計２２０を有する加圧空気放出管２１０を連通接続する貫通タップ２０１を形成し、これら各ピースの裏面に当該タップとＴ型当接部に連通する通気間隙を有するスリットを形成した。【選択図】図１The present invention provides a weld defect detection structure for a T-type contact portion, which is an extremely inexpensive and robust structure that enables rapid and accurate detection of the presence or absence of weld defects. SOLUTION: An end surface of a second iron plate S2 is brought into contact with a flat surface of a first iron plate S1 to form a T-shaped contact portion, and both corner portions 301 and both end portions 302 formed by the flat surface of the first iron plate and the end surface of the second iron plate are formed. In this structure, the compressed air supply piece 100 is interposed on one side of the entire length of the welded portion Sc1 of the corner portion 301, and the compressed air discharge piece 200 is interposed on the other side of the welded portion Sc1. A through tap 101 for connecting the supply pipe 110 is formed, and the compressed air discharge piece forms a through tap 201 for connecting a pressurized air discharge pipe 210 having a pressure gauge 220 at the center, and the back of each of the pieces A slit having a ventilation gap communicating with the tap and the T-shaped contact portion was formed. [Selection] Figure 1
Description
本考案はＴ型当接部において溶融不足による空隙、穴、孔等の通気欠陥を検出する溶溶接欠陥検出構造に関するものである。 The present invention relates to a welding defect detection structure for detecting air flow defects such as voids, holes and holes due to insufficient melting in a T-shaped contact portion.
造船の例えば、ブロック工法（ブロックこうほう）は、造船において船体を一括して建造せず、いくつかの塊（ブロック）に分けて同時に製造し、最後につなぎ合わせて完成させる生産性の高い工法である。
ブロック工法による造船を一隻造るには、建造する船の種類にもよるが、工事工程は、ブロック製作、船台／ドックでの組立、岸壁での艤装工事である。
この工事期間のみで、一隻の船が形になるまでには、船主との見積もり、設計など、多くの数多くの行程が重ねられる。For example, the block construction method (block way) of shipbuilding is a highly productive method that does not build the hull at the time of shipbuilding, but divides it into several blocks (blocks) at the same time, and finally connects them together. It is.
Depending on the type of ship to be built, the construction process involves building blocks, assembling at the stern / dock, and fitting work at the quay, depending on the type of ship to be built.
Only during this construction period, many processes such as estimation and design with the shipowner are repeated until one ship is formed.
ブロック造船においては、多数のブロックに、パイプや梯子などをできるだけ多く取り付けていき、クレーンでブロックとブロックをつなぎ、溶接を重ねながら船の形に仕上げる。ここから、船台やドックでの工事となり、この後建造船最初の晴れ舞台、進水式である。建造船を水に浮かべられる状態になると、船台から海に滑りおろすか、ドックに海水をいれ船を海上に浮かせる。 In block shipbuilding, as many pipes and ladders as possible are attached to a large number of blocks, and the blocks are connected with a crane and finished into a ship shape with repeated welding. From here, it will be construction on the stern and dock, and after that, it will be the first sunny stage of the ship built, the launching ceremony. When the ship is ready to float on the water, it slides down from the pedestal to the sea or puts seawater in the dock and floats the ship on the sea.
岸壁で、海上クレーンを使い、居住区などを据え付け、さらに、各種搭載機器を取り付け、艤装工事をおこない、最終仕上げをする。その後船の速度などの性能が、契約条件通りに仕上がっているかどうか、実際に船を走らせて最終テストをする。全ての工事を終え、船主へ引渡しされる。すべての努力はこの日のためにおこなわれ、建造された船は、日本をはじめ世界の海へと航海をはじめるのである。 On the quay, using a marine crane, install the residential area, etc., install various onboard equipment, perform outfitting work, and finish the final. After that, the ship is actually run and the final test is carried out to see if the ship's speed and other performances are finished according to the contract conditions. After all construction work, it is delivered to the owner. All efforts will be made for this day, and the ships built will begin to sail into Japan and the rest of the world.
そこで該ブロック工法による造船は、前述のように多くのブロック構築とブロック間接合構築が成されるが、この過程では多大な溶接部が存在する。
而してこの多大な溶接部は欠陥状態の有無の検査が不可欠である。
即ち溶接部は、空隙、穴、孔等のブローホール、スパッタ、アンダーカット、溶け落ち、溶接飛び、ビートずれ、長さ／幅／面積測定などを検出しなければならない。
これらの検出は、従来、レーザ光による３Ｄ画像を用いた溶接ビード外観検査システム、放射線検査（ＲＴ）、超音波検査（ＵＴ）、磁気検査（ＭＴ）、浸透検査（ＰＴ）、電磁誘導検査（ＥＴ）及びひずみ測定（ＳＭ）などの非破壊検査手法を用いて検査するのが一般的である。Therefore, in the ship building by the block construction method, as described above, many blocks and inter-block joints are constructed. In this process, a large number of welds exist.
Thus, it is indispensable to inspect for the presence or absence of defects in this large weld.
That is, the welded part must detect blow holes such as voids, holes, holes, spatters, undercuts, burn-outs, welding skips, beat shifts, length / width / area measurements, and the like.
Conventionally, these detection methods include a weld bead appearance inspection system using a 3D image by laser light, a radiation inspection (RT), an ultrasonic inspection (UT), a magnetic inspection (MT), a penetration inspection (PT), and an electromagnetic induction inspection ( It is common to inspect using non-destructive inspection techniques such as ET) and strain measurement (SM).
また溶接部の空隙、穴、孔等のブローホール等の検出については、簡易な方法として、溶接部にヘリウムガスを吹きつけ、溶接部に溶融不足による空隙、穴、孔等の欠陥がある場合、該欠陥を通してヘリウムガスが流通することをヘリウムディテクターによって検出するガス洩れ検出装置もある。
何れにしても上記従来の検出方法は、高額なディテクターを必要とし、その検出処理には多大な時間と労力と煩雑な判定処理を伴うものであった。In addition, for detecting voids, holes, holes, etc. in the welded part, as a simple method, when helium gas is blown to the welded part and the welded part has defects such as voids, holes, holes, etc. due to insufficient melting There is also a gas leak detection device that detects by helium detector that helium gas flows through the defect.
In any case, the conventional detection method described above requires an expensive detector, and the detection process involves a great amount of time, labor, and complicated determination processing.
而して、例えばブロック造船における各種鋼材の溶接接合において、船室、船倉等の構造鉄骨で縦仕切り壁鉄板は、底板鉄板及び天井鉄板との溶接接合及び各階の床鉄板と天井鉄板との溶接接合に多数用いられる。
例えばこの縦仕切り壁鉄板と底板鉄板との所謂Ｔ型溶接接合は、縦仕切り壁鉄板の下端面を底板鉄板の表面部に直角に当接して逆Ｔ型にし、又は縦仕切り壁鉄板の上端面を天井鉄板の表面部に当接してＴ型にし、これらＴ型当接部或いは逆Ｔ型当接部（以下単にＴ型当接部と言う）の全周すなわち「縦仕切り壁鉄板の端面近傍の表面と底板鉄板か天板鉄板の表面部とが成す全隅部の全長と縦仕切り壁鉄板の側面角部と底板鉄板か天板鉄板の側面角部」を肉盛り溶接して密封する。このＴ型当接部の全周長における溶接部の欠陥有無の検出は、前記課題の多い従来法を用いて実施していた。
本考案は、第一鉄板例えば前記縦仕切り壁鉄板の端面を第二鉄板例えば底板鉄板か天板鉄板の表面に直角に当接してＴ型にし、このＴ型当接部の全周を肉盛り溶接する際、この溶接と共に圧空供給ピースと圧空放出ピースを所定の位置に介在溶接しその後に、加圧空気供給管を圧空供給ピースに、圧力計を圧空放出ピースに各々連通接続して当該Ｔ型当接部内を密封加圧して当該Ｔ型当接部の外表面に発砲液を塗布して泡立ち状態の有無を検知することにより溶接欠陥の有無の一括検出を迅速適確に可能にした極めて安価で堅牢構造でしかも操作が簡易なＴ型当接部の溶接欠陥検出構造を提供する。Thus, for example, in welding welding of various steel materials in block shipbuilding, the vertical partition wall iron plate is welded to the bottom plate iron plate and the ceiling iron plate and welded to the floor iron plate and the ceiling iron plate of each floor in a structural steel frame such as a cabin or a hold. Many are used.
For example, the so-called T-type welded connection between the vertical partition wall iron plate and the bottom plate iron plate is a reverse T type by contacting the lower end surface of the vertical partition wall iron plate at a right angle to the surface portion of the bottom plate iron plate, or the upper end surface of the vertical partition wall iron plate Is brought into contact with the surface of the ceiling iron plate to form a T-shape, and the entire circumference of these T-type contact portion or reverse T-type contact portion (hereinafter simply referred to as T-type contact portion), that is, “in the vicinity of the end face of the vertical partition wall iron plate” The entire length of the entire corner formed by the surface of the steel plate and the surface of the bottom plate or the top plate, the side corners of the vertical partition wall iron plate, and the side corners of the bottom plate or top plate are welded and sealed. Detection of the presence or absence of defects in the welded portion in the entire circumference of the T-shaped contact portion has been performed using the conventional method having many problems.
In the present invention, the end face of the first iron plate such as the vertical partition wall iron plate is brought into contact with the surface of the second iron plate such as the bottom plate iron plate or the top plate iron plate at a right angle to form a T shape, and the entire circumference of the T type contact portion is built up. When welding, the compressed air supply piece and the compressed air discharge piece are intervened at predetermined positions together with the welding, and then the pressurized air supply pipe is connected to the compressed air supply piece and the pressure gauge is connected to the compressed air discharge piece. It is possible to quickly and accurately detect the presence or absence of welding defects by sealing and pressurizing the inside of the mold contact part and applying foaming liquid to the outer surface of the T-type contact part to detect the presence or absence of foaming. Provided is a weld defect detection structure for a T-type contact portion which is inexpensive and robust and easy to operate.
上記課題を満足させる本考案の基本的な技術構成は、次の（１）の通りである。
（１）、第一鉄板Ｓ１の平面に第二鉄板Ｓ２の端面を当接してＴ型当接部３００にし、第一鉄板Ｓ１の平面と第二鉄板Ｓ２の端面とが成す両隅部３０１と両端部３０２を肉盛り溶接する構造において、この隅部３０１の溶接部Ｓｃ１の全長の一方側に圧空供給ピース１００を他方側に圧空放出ピース２００を介在溶接し、前記圧空供給ピース１００は中央部に加圧空気供給管１１０を連通接続する貫通タップ１０１を形成し、前記圧空放出ピース２００は中央部に圧力計２２０を有する加圧空気放出管２１０を連通接続する貫通タップ２０１を形成し、これら各ピースは裏面に当該タップと前記Ｔ型当接部３００に連通する通気間隙を形成するスリット１０２、２０２を形成したことを特徴とするＴ型当接部の溶接欠陥検出構造。The basic technical configuration of the present invention that satisfies the above problems is as follows (1).
(1) The end surface of the second iron plate S2 is brought into contact with the plane of the first iron plate S1 to form a T-shaped contact portion 300, and both corner portions 301 formed by the plane of the first iron plate S1 and the end surface of the second iron plate S2 In the structure in which both end portions 302 are build-up welded, the compressed air supply piece 100 is welded to one side of the entire length of the welded portion Sc1 of the corner portion 301, and the compressed air discharge piece 200 is welded to the other side. The pressurized air supply pipe 110 is connected to the penetrating tap 101, and the compressed air discharge piece 200 is formed with a penetrating tap 201 that connects the pressurized air discharge pipe 210 having the pressure gauge 220 at the center. Each piece has a T-type contact portion weld defect detection structure in which slits 102 and 202 are formed on the back surface to form a ventilation gap communicating with the tap and the T-type contact portion 300.
本考案のＴ型当接部の溶接欠陥検出構造は、図１に示すように、第一鉄板の平面と第二鉄板の端面とが当接したＴ型当接部の両隅部と両端部の全長を肉盛り溶接しながら例えば片側の隅部に圧空供給ピースと圧空放出ピースを適宜な間隔で介在溶接した後に、当該両隅部と両端部の肉盛り溶接部の全長に発泡性液を散布する。次いで圧空供給ピースのタップに加圧空気供給管を連通接続すると共に圧空放出ピースのタップに圧力計付設の加圧空気放出管を連通接続する。次いで加圧空気供給管から圧空供給ピースのスリットと、第一鉄板の平面と第二鉄板の端面との当接部の空隙と、加圧空気放出ピースのスリットを介して圧力計に加圧空気を所定圧になるまで供給する。次いで発泡性液を散布した当該両隅部と両端部の肉盛り溶接部からの泡発生状態を観察してエアー漏れ部即ち溶接部全長における欠陥部の有無をカメラや目視で一括して検知することができるのである。
この後エアー漏れ部があれば直ちに補修溶接して泡発生部を皆無にし、当該肉盛り作業を完了する。この処置後は各ピースの接続管をタップから螺脱後、タップを閉止してよく或いはそのままにするなど、鋼材の一部として活用するのである。つまり前記各ピースの除去作業を不要にするのである。
このように本考案は、造船、鉄鋼建築物等の溶接部の検査をリアルタイムにおこなうことができるので造船などにおける溶接生産性および安全性を極めて大幅に高効率化することを実現しさらに各種建設産業界に貢献すること多大なものがある。
［これによりAs shown in FIG. 1, the weld defect detection structure of the T-type contact portion according to the present invention has both corners and both end portions of the T-type contact portion where the flat surface of the first iron plate and the end surface of the second iron plate contact each other. For example, after weld welding the compressed air supply piece and the compressed air discharge piece to the corner on one side at an appropriate interval, the foaming liquid is applied to the entire length of the build-up weld at both corners and both ends. Scatter. Next, a pressurized air supply pipe is connected to the tap of the compressed air supply piece, and a pressurized air discharge pipe provided with a pressure gauge is connected to the tap of the compressed air discharge piece. Next, the pressurized air is supplied to the pressure gauge from the pressurized air supply pipe through the slit of the compressed air supply piece, the gap between the flat surface of the first iron plate and the end surface of the second iron plate, and the slit of the pressurized air discharge piece. Until a predetermined pressure is reached. Next, the state of bubbles generated from the welded portions at both corners and both ends where the foaming liquid has been sprayed is observed, and the presence or absence of a defective portion in the entire length of the air leaked portion, that is, the welded portion is collectively detected by a camera or visual inspection. It can be done.
Thereafter, if there is an air leaking portion, repair welding is immediately performed to eliminate the bubble generating portion, and the build-up operation is completed. After this treatment, the connecting pipe of each piece is screwed off from the tap, and then the tap may be closed or left as it is, and used as a part of the steel material. That is, the removal work of each piece is made unnecessary.
In this way, the present invention enables real-time inspection of welded parts such as shipbuilding and steel buildings, etc., so that it realizes extremely high efficiency in welding productivity and safety in shipbuilding and various other constructions. There is a great deal to contribute to the industry.
[By this
本考案を実施するための形態を次の実施例と共に説明する。The form for implementing this invention is demonstrated with the following Example.
本例のＴ型当接部の溶接欠陥検出構造は、図１に全体の鳥瞰図を示すように、床鉄板を第一鉄板Ｓ１とし、この平面に壁鉄板を第二鉄板Ｓ２としてその下端面を直角に当接してＴ型当接部３００を組み、このＴ型当接部３００において、第一鉄板Ｓ１の平面と第二鉄板Ｓ２の下端面とが成す両隅部３０１と両端部３０２を肉盛り溶接する構造において、片側の隅部３０１の溶接部Ｓｃ１の全長の一側方に圧空供給ピース１００を他側方に圧空放出ピース２００を肉盛溶接部１００ａ，２００ａで介在溶接したものである。この図では、前記圧空供給ピース１００と圧空放出ピース２００は、当該肉盛溶接部１００ａ，２００ａで介在溶接した直後の状態を示してあり、この後圧空供給ピース１００に空気供給管１１０を圧空放出ピース２００に加圧空気放出管２１０をそれぞれ連通接続する。空気供給管１１０は加圧ポンプ１２０又は工場圧空配管に連通接続し、加圧空気放出管２１０は圧力計付２２０に連通接続する。 The weld defect detection structure of the T-shaped contact portion of this example is shown in FIG. 1 as a whole bird's-eye view. The floor iron plate is the first iron plate S1, the wall iron plate is the second iron plate S2 on this plane, and the lower end surface is A T-type contact portion 300 is assembled by contacting at right angles. In this T-type contact portion 300, both corners 301 and both ends 302 formed by the flat surface of the first iron plate S1 and the lower end surface of the second iron plate S2 are formed. In the build-up welding structure, the compressed air supply piece 100 is welded to one side of the entire length of the welded portion Sc1 of the corner 301 on one side, and the compressed air discharge piece 200 is welded to the other side by the build-up welds 100a and 200a. . In this figure, the compressed air supply piece 100 and the compressed air discharge piece 200 are shown in a state immediately after interposing welding at the build-up welds 100a and 200a. Thereafter, the air supply pipe 110 is discharged into the compressed air supply piece 100 with compressed air. Pressurized air discharge pipes 210 are connected to the pieces 200 in communication. The air supply pipe 110 is connected to the pressurizing pump 120 or the factory compressed air pipe, and the pressurized air discharge pipe 210 is connected to the pressure gauge attached 220.
前記圧空供給ピース１００と圧空放出ピース２００は、主な検出治具であるが図２〜図４に示すように、この各ピースは形状を同一形状にしてあり、図２に図１の拡大表面図を示し、図３の（１）に表面図を示し図３の（２）に裏面図を示し、図４の（１）に図１の矢視Ａ−Ａからの縦断面図を示し、図４の（２）に矢視Ｂ−Ｂからの縦断面図を示す。
圧空供給ピース１００と圧空放出ピース２００は、下端面をＴ型当接部３００の前記第一鉄板Ｓ１の平面に当接し、裏面を、Ｔ型当接部３００を形成する前記第二鉄板Ｓ２の直立表面に当接する。また表面中央部に直立表面から直立裏面に貫通するタップ１０１、２０１を形成すると共に、当該前記タップ１０１、２０１の裏口から前記第二鉄板Ｓ２の直立表面間を介して前記Ｔ型当接部３００に連通するスリット１０２，２０２と面取部１０３，２０３を形成してある。この面取部１０３，２０３は、Ｔ型当接部４００の肉盛り溶接量程度と間隙程度によっては省略できる。
また圧空供給ピース１００と圧空放出ピース２００の形状は、略半円状にしてあり溶接時の熱歪変形や劣化防止、溶接後の強度保持などから好ましい形状であるが、本考案はこの形状に拘らず当該Ｔ型当接部３００の間隙形態に応じて楕円形、台形、矩形など適宜な形状に形成することができる。Although the compressed air supply piece 100 and the compressed air discharge piece 200 are main detection jigs, as shown in FIGS. 2 to 4, each piece has the same shape, and FIG. 3 shows a front view, FIG. 3 (2) shows a back view, FIG. 4 (1) shows a longitudinal sectional view from AA in FIG. FIG. 4 (2) shows a longitudinal sectional view from the arrow BB.
The compressed air supply piece 100 and the compressed air discharge piece 200 are in contact with the flat surface of the first iron plate S1 of the T-type contact portion 300 at the lower end surface and the back surface of the second iron plate S2 forming the T-type contact portion 300. Abuts on an upright surface. Further, the taps 101 and 201 penetrating from the upright surface to the upright back surface are formed in the center of the front surface, and the T-type contact portion 300 is interposed between the upright surfaces of the second iron plate S2 from the back opening of the taps 101 and 201. Slits 102 and 202 and chamfered portions 103 and 203 are formed. The chamfered portions 103 and 203 can be omitted depending on the build-up welding amount and the gap of the T-type contact portion 400.
The compressed air supply piece 100 and the compressed air discharge piece 200 have a substantially semicircular shape, which is a preferable shape from the viewpoint of preventing thermal distortion deformation and deterioration during welding, maintaining strength after welding, and the like. Regardless, it can be formed in an appropriate shape such as an ellipse, a trapezoid, or a rectangle according to the gap form of the T-shaped contact portion 300.
これら圧空供給ピース１００と圧空放出ピース２００は、図１と図２に示すように、前記Ｔ型当接部３００の両隅部３０１と両端部３０２の全周全長に肉盛り溶接部Ｓｃ１、Ｓｃ２を形成する際に溶接部Ｓｃ１に介在溶接する。
つまり圧空供給ピース１００と圧空放出ピース２００を片側の隅部３０１側に所定の通気検出長さ間隔を置いて配置し、隅部３０１の肉盛り溶接部Ｓｃ１の形成と共に、ピース全周囲を肉盛溶接して肉盛溶接部１００ａ，２００ａを形成する。
この後、全肉盛り溶接部Ｓｃ１、Ｓｃ２、１００ａ、２００ａに発泡性液を散布すると共に、図１及び図４に示すように、圧空供給ピース１００のタップ１０１に加圧空気供給管１１０を螺合して連通接続し、圧空放出ピース２００のタップ２０１に圧力計２２０付設の加圧空気放出管２１０を螺合し連通接続する。As shown in FIG. 1 and FIG. 2, these compressed air supply piece 100 and compressed air discharge piece 200 are built-up welds Sc1 and Sc2 over the entire circumference of both corners 301 and both ends 302 of the T-shaped contact part 300. Is formed, the welded portion Sc1 is intervened.
That is, the compressed air supply piece 100 and the compressed air discharge piece 200 are arranged on the one corner portion 301 side with a predetermined ventilation detection length interval, and along with the formation of the build-up welded portion Sc1 of the corner portion 301, the entire periphery of the piece is built up. It welds and forms the overlay welding parts 100a and 200a.
After that, the foamable liquid is sprayed on all the build-up welds Sc1, Sc2, 100a, and 200a, and the pressurized air supply pipe 110 is screwed onto the tap 101 of the compressed air supply piece 100 as shown in FIGS. The compressed air discharge pipe 210 with the pressure gauge 220 is screwed into the tap 201 of the compressed air discharge piece 200 and connected in communication.
次いで加圧空気供給管１１０から圧空供給ピース１００のスリット１０１と、第一鉄板Ｓ１の平面と第二鉄板Ｓ２の端面とのＴ型当接部３００の全空隙と、加圧空気放出ピース２００のスリット２０１を介して圧力計２２０に加圧空気を所定圧になるまで供給する。 Next, the slit 101 of the compressed air supply piece 100 from the pressurized air supply pipe 110, the entire gap of the T-type contact portion 300 between the flat surface of the first iron plate S1 and the end surface of the second iron plate S2, and the pressurized air discharge piece 200 Pressurized air is supplied to the pressure gauge 220 through the slit 201 until a predetermined pressure is reached.
次いで発泡性液を散布した全肉盛り溶接部Ｓｃ１、Ｓｃ２、１００ａ、２００ａからの泡発生状態を観察してエアー漏れ部即ち溶接部の通気欠陥部の有無を目視により一括して検知し有部にマーキングする。
この後マーキングしたエアー漏れ部は、直ちに補修溶接して泡発生を皆無にし、当該肉盛り作業を完了する。Next, the state of bubbles generated from all the welded parts Sc1, Sc2, 100a, 200a sprayed with foaming liquid is observed, and the presence or absence of an air leaking part, that is, the presence of a ventilation defect in the welded part, is collectively detected. Mark on.
Thereafter, the marked air leakage part is immediately repaired and welded to eliminate the generation of bubbles and complete the build-up operation.
この処置後は、各ピース１００，２００は、当該タップ１０１、２０１から加圧空気供給管１１０及び加圧空気放出ピース２００を外し、次いでタップ１０１、２０１を埋め閉止し、或いはそのままにするなどして、鋼材の一部として活用し各ピースの除去作業を不要にするのである。After this treatment, each piece 100, 200 removes the pressurized air supply pipe 110 and the pressurized air discharge piece 200 from the taps 101, 201, and then fills the taps 101, 201, or leaves them as they are. Therefore, it is used as a part of steel material, and the removal work of each piece is unnecessary.
本考案のＴ型当接部の溶接欠陥検出構造は、前記した優れた作用効果を呈するものである。このため、造船などにおける溶接生産性および安全性を大幅に高効率化することができるのであり、各種造船業界に貢献すること多大なものがある。The weld defect detection structure of the T-type contact portion of the present invention exhibits the above-described excellent operational effects. For this reason, welding productivity and safety in shipbuilding and the like can be greatly improved, and there is a great deal of contribution to various shipbuilding industries.
Ｓ１：第一鉄板
Ｓ２：第二鉄板
１００：圧空供給ピース
１００ａ：圧空供給ピースの肉盛溶接部
１０１、２０１：タップ（雌螺子穴）
１０２、２０２：スリット
１０３、２０３：開先
１１０：圧空供給管
１２０：エアーコンプレッサー
２００：加圧空気放出ピース
２００ａ：圧空放出ピースの肉盛溶接部
２１０：加圧空気放出管
２２０：圧力計
３００：Ｔ型当接部（第一鉄板Ｓ１と第二鉄板Ｓ２とのＴ型当接部）
３０１：Ｔ型当接部３００の両隅部
３０２：Ｔ型当接部３００の両端部
Ｓｃ１：両隅部３０１の溶接部
Ｓｃ２：両端部３０２の溶接部S1: First iron plate S2: Second iron plate 100: Pressure air supply piece 100a: Build-up welded portion 101, 201 of pressure air supply piece, 201: Tap (female screw hole)
102, 202: Slits 103, 203: Groove 110: Pressure air supply pipe 120: Air compressor 200: Pressurized air discharge piece 200a: Build-up welded part 210: Pressurized air discharge pipe 220: Pressure gauge 300: T-type contact portion (T-type contact portion between the first iron plate S1 and the second iron plate S2)
301: Both corners 302 of the T-type contact part 300: Both ends Sc1 of the T-type contact part 300 1: Welded part Sc2 of both corners 301: Welded part of both ends 302
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014004270U JP3194227U (en) | 2014-07-23 | 2014-07-23 | Weld defect detection structure of T-type contact part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014004270U JP3194227U (en) | 2014-07-23 | 2014-07-23 | Weld defect detection structure of T-type contact part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3194227U true JP3194227U (en) | 2014-11-13 |
Family
ID=51946094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014004270U Expired - Lifetime JP3194227U (en) | 2014-07-23 | 2014-07-23 | Weld defect detection structure of T-type contact part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3194227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114728381A (en) * | 2019-11-27 | 2022-07-08 | 杰富意钢铁株式会社 | Welding inspection device |
-
2014
- 2014-07-23 JP JP2014004270U patent/JP3194227U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114728381A (en) * | 2019-11-27 | 2022-07-08 | 杰富意钢铁株式会社 | Welding inspection device |
| CN114728381B (en) * | 2019-11-27 | 2023-12-19 | 杰富意钢铁株式会社 | Welding inspection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101726395B (en) | Method for testing tightness of welding lines | |
| CN102874379B (en) | Manufacture method of offshore riprap leveling ship | |
| CN207147712U (en) | A kind of tightness test frock of pipe component | |
| CN101706350A (en) | Device for testing airtightness of weld joint on ship surface and using method thereof | |
| WO2018196280A1 (en) | Method for submerged arc welding at inclined position | |
| WO2013071668A1 (en) | Large-size floating state manufacturing method for marine engineering equipment | |
| CN103645018A (en) | Fillet weld inflation test method | |
| CN103692061A (en) | Butt-welding method using dual-gun automatic horizontal welding bogie | |
| Sidhu et al. | Role of shielded metal arc welding consumables on pipe weld joint | |
| CN104708238A (en) | Method for preventing laying of steel and aluminum composite connector | |
| JP3194227U (en) | Weld defect detection structure of T-type contact part | |
| CN112658518A (en) | Construction method of main propeller base of deep water dynamic positioning crude oil conveying device | |
| CN104085499A (en) | Ship fin stabilizer installation method | |
| CN100360916C (en) | Method and device of tightness test for filler weld | |
| CN111006817A (en) | Pump compaction test assembly, side pipeline and mounting method of side pipeline | |
| CN109014775B (en) | Method for butting outboard plates on two sides of fore-and-aft column of ship | |
| CN111805174B (en) | Manufacturing and assembling method of large closed cold accumulation tank | |
| CN111323484B (en) | Method for manufacturing kiss-joint defect reference test block and method for detecting by using test block | |
| CN113264170A (en) | Front guide wheel and front guide wheel installation method | |
| CN104296941A (en) | Fillet weld tightness test method of hull structure | |
| CN117259920A (en) | Welding method of MARK III film cabin liquid dome stainless steel sealing plate | |
| CN104259624A (en) | Forming process of moderate-thickness plate no-back-gouging butt joint full-penetration class-I component | |
| CN210592336U (en) | Liquefied natural gas ship-borne catamaran storage tank | |
| RU2325578C1 (en) | Method of repairing of submerged pipeline | |
| CN204077990U (en) | A kind of little hatchcover pipeline guiding draining frock peculiar to vessel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20140917 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 3194227 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |